http://www.geocities.com/motorcity/garage/6809/
http://www.astra-turbo.de
http://www.geocities.com/MotorCity/Speedway/4197/
http://www.opel.com
http://194.215.233.20/bart/
http://www.medial.se/opel/
http://www.armory.com/~taz/opel/
http://www.opelgtworld.de
http://www.history.rochester.edu/class/opel/
http://www.btinternet.com/~stephen.morrison/welcome1.htm
http://www.opel.com/motorshows/index.html
http://www.opelgt.com
http://www.dra.nl/~ruudje/opel.html
http://www.team-opel.com
http://www.washington-defensivedriving.com